The featured mechanic from The Ruinous Powers is cascade, an extremely powerful ability that gives you the option to reveal cards from the top of your library until you find something that costs less than the spell you cast, and you cast it for free
High Alert
While it is true that removing Jace, Vryn's Prodigy and Gideon, Ally of Zendikar from the format would still leave us with an expensive Standard, their presence exacerbates all the other problems we've been talking about
Prior to the printing of this deck, do you know how many cards in the history of the game were just these three colors
The cards explosive synergy was strong enough to help push Kuldotha Rebirth into a ban in Pauper, and in Modern its a key piece of 8-Wack decks, which run eight Bushwhacker effects for relentless, high-speed kills
Result: Mill your deck, near-infinite colored mana, storm, and magecraft triggers